Hey guys,

I have 2 questions.

1) How often should I be changing my tranny fluid? is it based on duration of the fluid, or how far I've driven with the same fluid?

2) I heard there's a product you can add to the tranny fluid tank which optimizes the performance of our tranny. Does anyone with their TL-S add any product to the tranny fluid to make it smoother?

I did a search and found a product which can prevent leaks and help clean your transmission. It's manufactured by Valvoline.

Anyone on this forum have experience with that product?

 

I personally would never use a leak preventing/cleaning additive. All stop leaks do is swell your seals which is a terrible thing and cause more problems in the long-term.

I change my tranny fluid every 30K. I think that noticing increased smoothness when using different fluids in purely psychological, however this doesn't take away from the fact that they can benefit you with better protection. Check-out Redline products.

My 2-cents.

 

Don't use the stop-leak, unless you have one. As noted, most of them swell the seals.

Also note that in most cases, smoother is a bad thing. A smoother shifting transmission generally means that the clutch packs are slipping longer, which means they'll wear quicker. There's a compromise to be reached with shift time between comfort (longer shifts) and shock loading (shorter shifts). This logic assumes that the trans is working correctly in the first place, of course.

Stick with the recommended Honda ATF. Each manufacturer formulates it slightly different, and unless you know specifically what you want, or what you're trying to do, changing up can have bad results.

Todd